Advertise on DISCO3.CO.UK
Forum · Gallery · Wiki · Shop · Sponsors
DISCO3.CO.UK > Technical (D4)

Brake disks and MOT
Post Reply  Down to end
Page 1 of 1
Deno
 


Member Since: 16 Oct 2009
Location: Exmouth, Devon
Posts: 7

2015 Discovery 4 3.0 SDV6 HSE Lux Auto Aintree GreenDiscovery 4
Brake disks and MOT

Hi, my first post although a member for a while. Does anyone know if the thickness of the front brake disk is part of the MOT. My Disco 4 went in for an MOT. I also have an extended warrantee. The dealership rang to say that my disks were below the minimum of 27mm and did I want to have new disks and pads fitted. Thinking that it was a requirement of the MOT I said yes and expected the warrantee to pay for it. When I returned to pick up the car I had to pay for the disks and pads and I was told that the car would not have failed the MOT if I had not had the disks/pads renewed and that them ringing me was only because of the safety check and that the 27mm was only a recommendation from LR, not a requirement. I want to make sure that the dealership and the warrantee company are not trying to pull a fast one. Feeling like the warrantee is a bit of a waste seeing as the details say that disks are covered for the MOT.
 Deno  
Post #151810120th Aug 2015 8:52 pm
View user's profile Send private message View poster's gallery Reply with quote
Allan_T
 


Member Since: 10 Sep 2012
Location: Northampton
Posts: 1034

United Kingdom 2007 Discovery 3 TDV6 GS Auto Java BlackDiscovery 3

Copied from the Workshop Manual:
Measure the brake disc thickness at four points around the brake disc.
Renew the brake disc if the thickness is less than the service limit, or if the maximum thickness variation is exceeded. Brake disc thickness, NEW = 30 mm, Service limit = 27 mm.

The brake disc will have the minimum thickness stamped on the outer edge.

Brake pads and discs are classed as wear items as by their very nature are subject to wear and tear.
 GAP IID Pro Multi Vehicle Defender L316 2007-2015 - Discovery 3 - Discovery 4 - Discovery Sport L550 - Freelander 2 - Range Rover Evoque L538 - Range Rover L322 - Range Rover L405 - Range Rover Sport L320 - Range Rover Sport L494
Electrical Fault Diagnostics
 
 
Post #151811620th Aug 2015 9:19 pm
View user's profile Send private message View poster's gallery Reply with quote
MGCarr
 


Member Since: 15 Jul 2014
Location: Lancashire
Posts: 703

United Kingdom 2007 Discovery 3 TDV6 SE Auto Buckingham BlueDiscovery 3

Sorry to be pessimistic on this one but I think that you're between a rock and a hard place. The dealer is right to recommend changing the discs based on LRs service specifications but the warranty company is also almost certainly right that they would not have failed the MOT. The MOT test for discs is a visual examination without removing the wheels and a function test on the rolling road and I think those discs would have passed that. I know it does not feel like good practice but in my experience the only way to get wear related items out of a warranty company at MOT time is to put it in for the test without any preparation and see what it fails on, then make your claim.
 
1997 Defender 90 for the kids and I to have a go at some competitive off road RTV and Tyro trials, daughter picked up her first trophy over the August Bank Holiday.
Previous Land Rover history
1996 P38 4.6 V8 Autobiography
1996 Discovery TDi 300
1972 Range Rover 3.5 V8
LWB Hard Top Series 3
LWB Truck Cab Series 2A
Not been without a Land Rover for over 40 years - I must need therapy! 
 
Post #151815720th Aug 2015 11:08 pm
View user's profile Send private message View poster's gallery Reply with quote
Deno
 


Member Since: 16 Oct 2009
Location: Exmouth, Devon
Posts: 7

2015 Discovery 4 3.0 SDV6 HSE Lux Auto Aintree GreenDiscovery 4

Thank you both. This site never ceases to amaze me. My car was indeed in for a service and MOT and I also had a call from the warrantee company about some other repairs. That particular guy said the disks would have been covered if the car had failed the MOT. I suppose I was naively thinking that LR would fail the car on the grounds that they knew the disks were below recommended tolerances. Once I had agreed to the repairs prior to the actual MOT this did not become an issue. Thanks once again.
 Deno  
Post #151818021st Aug 2015 6:43 am
View user's profile Send private message View poster's gallery Reply with quote
Robbie
 


Member Since: 05 Feb 2006
Location: ¯\_(ツ)_/¯
Posts: 17932

United Kingdom 2013 Discovery 4 3.0 SDV6 HSE Auto Baltic BlueDiscovery 4

I'm pleased that the dealer actually measured the rotors. I've seen one or two that were rather thin.

Thumbs Up
 Land Rover - Turning Drivers into Mechanics Since 1948

Battery & Quiescent Current Drain Testing

Diagnostics for:
Defender, FL2, D3, D4, Evoque, RRS & FFRR
A not-for-profit enterprise


 
 
Post #151818321st Aug 2015 7:05 am
View user's profile Send private message View poster's gallery Reply with quote
M3DPO
 


Member Since: 22 Sep 2010
Location: Notts.
Posts: 8227

England 2014 Discovery 4 3.0 SDV6 HSE Lux Auto Corris GreyDiscovery 4

They where measured as part of the Heath/safety check not as part of the MOT just as the depth of tyre tread would have been measured, expecting worn disks to be changed on a five year old vehicle under warranty is a bit much, why not have a new set of tyres fitted as well?
 It can when others can't,
It will when others won't,
It goes where others don't. 
 
Post #151819421st Aug 2015 7:27 am
View user's profile Send private message View poster's gallery Reply with quote
DDDad
 


Member Since: 10 Jan 2015
Location: Angus
Posts: 1201

United Kingdom 2009 Discovery 3 TDV6 GS Manual Stornoway GreyDiscovery 3

I'm sure Disco-Mikey has posted somewhere that the 27mm minimum is due to the calliper pistons being over extended when the pads and discs are worn out. Shocked Good job the problem was spotted and fixed. Thumbs Up
 Went for a job as a human cannonball. Not the right calibre.  
Post #151879022nd Aug 2015 5:43 pm
View user's profile Send private message View poster's gallery Reply with quote
CDS
Site Sponsor 


Member Since: 12 Oct 2009
Location: Cornwall & most of the UK!
Posts: 3343

United Kingdom 2008 Discovery 3 TDV6 HSE Auto Tangiers OrangeDiscovery 3

The age old problem of taking your car for a service AND MOT at the same time.....
If they are just MOTing it then they can't take ANYTHING apart......if you take it for both, they will take things apart and then make you feel that you have to have it done for the MOT.
In this instance I believe you were correct to have the brakes done as others have said.....it all depends on whether or not you are happy to get your tools out and do maintenance yourself.....if I take my D3 to LR tomorrow and they tell me it needs new discs and pads, I will know in an instant I am being ripped off as I know what state my brakes are in......if you don't know yourself then you are left in a position of having to trust their word......
One is time consuming and cheap, the other is less time consuming and potentially more expensive.....sometime a you pay for lack of hassle in this life.

Not being able to stop in 3T of discovery is hassle by definition!
 
Discovery 3/4 & RRS keys cut and programmed at your home or work
Apple CarPlay/ Android Auto retro fit - see it here
BAS Remaps/ EGR Blanking
Software updates/ enabling
Mobile Servicing & Repairs
 
 
Post #151891022nd Aug 2015 11:16 pm
View user's profile Send private message View poster's gallery Reply with quote
Pedros
 


Member Since: 25 Jun 2011
Location: Cumbria
Posts: 454

United Kingdom 2010 Discovery 4 3.0 TDV6 XS Auto Santorini BlackDiscovery 4

It does seem to be normal practice for LR dealers to give you a call when your car is in for service, saying what percentage of your pads is left or how worn your discs are and asking if you want them changed. Not in itself a bad thing.

It's a bit of a quandary to have to answer them on the spot and probably you need to take a minute to assess what you want. If they are, for example 70% worn, do you say go ahead and change them? On the one hand, you are possibly changing them earlier than you strictly need. On the other, you are maybe saving on another trip to the garage.
  
Post #151892323rd Aug 2015 3:14 am
View user's profile Send private message View poster's gallery Reply with quote
DDDad
 


Member Since: 10 Jan 2015
Location: Angus
Posts: 1201

United Kingdom 2009 Discovery 3 TDV6 GS Manual Stornoway GreyDiscovery 3

It's the flip-side of long service intervals, ain't it? If the dealer only sees the car once a year they are obliged to estimate whether the discs and pads will last another 12 months. Now I'm doing my own maintenance I try to squeeze the last bit of use out of everything. Thumbs Up
 Went for a job as a human cannonball. Not the right calibre.  
Post #151901423rd Aug 2015 10:44 am
View user's profile Send private message View poster's gallery Reply with quote
Washwipe
 


Member Since: 19 Apr 2013
Location: Bucks Oxon Herts Border
Posts: 3169

England 

Pedros wrote:
It does seem to be normal practice for LR dealers to give you a call when your car is in for service, saying what percentage of your pads is left or how worn your discs are and asking if you want them changed. Not in itself a bad thing.

It's a bit of a quandary to have to answer them on the spot and probably you need to take a minute to assess what you want. If they are, for example 70% worn, do you say go ahead and change them? On the one hand, you are possibly changing them earlier than you strictly need. On the other, you are maybe saving on another trip to the garage.


Three or four years ago, a certain large chain of LR franchised dealers called in the September whilst the FL2 I had was in for service, said that the front pads were very low and needed changing, did I want them to do it, I knew they were low, but not that low, I had already bought a set to fit, end of November came, they phoned up offering a free winter check, it's free so went with it and they had it in, when the wife went to collect it, they said that everything was fine, but it would be due for a service in about ten months, 12k and we should expect to have to have the front pads changed at the next service. Thud

I don't use them anymore.
  
Post #151901923rd Aug 2015 10:58 am
View user's profile Send private message View poster's gallery Reply with quote
Deno
 


Member Since: 16 Oct 2009
Location: Exmouth, Devon
Posts: 7

2015 Discovery 4 3.0 SDV6 HSE Lux Auto Aintree GreenDiscovery 4

Thanks everyone for your comments. It's good to get another opinion. Drive safe everyone.
 Deno  
Post #152975615th Sep 2015 8:32 am
View user's profile Send private message View poster's gallery Reply with quote
ZacSmith
 


Member Since: 26 Aug 2010
Location: Dover
Posts: 709

United Kingdom 

DDDad wrote:
If the dealer only sees the car once a year Thumbs Up


Rolling with laughter Rolling with laughter Rolling with laughter
 VIN: A175A328***  
Post #152976015th Sep 2015 8:39 am
View user's profile Send private message View poster's gallery Post Reply
Display posts from the last:  
Post Reply Back to top
Page 1 of 1
Jump to:  
Previous Topic | Next Topic >


Posting Rules
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum



DISCO3.CO.UK Copyright © 2004-2024 Futuranet Ltd & Martin Lewis
DISCO3.CO.UK RSS Feed - All Forums

DISCO3.CO.UK is independent and not affiliated to Land Rover.
Switch to Mobile Site